[PATCH 16/20] inflate: remove legacy DEBG macros
From: Matt Mackall
Date: Mon Oct 31 2005 - 16:05:54 EST
inflate: remove legacy DEBG macros
Signed-off-by: Matt Mackall <mpm@xxxxxxxxxxx>
Index: 2.6.14/lib/inflate.c
===================================================================
--- 2.6.14.orig/lib/inflate.c 2005-10-28 22:04:23.000000000 -0700
+++ 2.6.14/lib/inflate.c 2005-10-28 22:04:27.000000000 -0700
@@ -1,5 +1,3 @@
-#define DEBG(x)
-#define DEBG1(x)
/* inflate.c -- Not copyrighted 1992 by Mark Adler
* version c10p1, 10 January 1993
*
@@ -416,8 +414,6 @@ static int INIT huft_build(unsigned *b,
int y; /* number of dummy codes added */
unsigned z; /* number of entries in current table */
- DEBG("huft1 ");
-
for (i = 0; i < BMAX + 1; i++)
c[i] = 0;
@@ -435,8 +431,6 @@ static int INIT huft_build(unsigned *b,
return 2;
}
- DEBG("huft2 ");
-
/* Find minimum and maximum length, bound *m by those */
l = *m;
for (j = 1; j <= BMAX; j++)
@@ -455,8 +449,6 @@ static int INIT huft_build(unsigned *b,
l = i;
*m = l;
- DEBG("huft3 ");
-
/* Adjust last length count to fill out codes, if needed */
for (y = 1 << j; j < i; j++, y <<= 1) {
y -= c[j];
@@ -469,8 +461,6 @@ static int INIT huft_build(unsigned *b,
return 2;
c[i] += y;
- DEBG("huft4 ");
-
/* Generate starting offsets into the value table for each length */
x[1] = j = 0;
p = c + 1;
@@ -483,8 +473,6 @@ static int INIT huft_build(unsigned *b,
xp++;
}
- DEBG("huft5 ");
-
/* Make a table of values in order of bit lengths */
p = b;
i = 0;
@@ -496,8 +484,6 @@ static int INIT huft_build(unsigned *b,
n = x[g]; /* set n to length of v */
- DEBG("h6 ");
-
/* Generate the Huffman codes and for each, make the table entries */
x[0] = i = 0; /* first Huffman code is zero */
p = v; /* grab values in bit order */
@@ -506,18 +492,14 @@ static int INIT huft_build(unsigned *b,
u[0] = NULL; /* just to keep compilers happy */
q = NULL; /* ditto */
z = 0; /* ditto */
- DEBG("h6a ");
/* go through the bit lengths (k already is bits in shortest code) */
for (; k <= g; k++) {
- DEBG("h6b ");
a = c[k];
while (a--) {
- DEBG("h6b1 ");
/* i is the Huffman code of length k for value *p */
/* make tables up to required level */
while (k > w + l) {
- DEBG1("1 ");
h++;
w += l; /* previous table always l bits */
@@ -530,7 +512,6 @@ static int INIT huft_build(unsigned *b,
f = 1 << j;
if (f > a + 1) {
/* too few codes for k-w bit table */
- DEBG1("2 ");
/* deduct codes from patterns left */
f -= a + 1;
xp = c + k;
@@ -547,7 +528,6 @@ static int INIT huft_build(unsigned *b,
}
}
- DEBG1("3 ");
/* table entries for j-bit table */
z = 1 << j;
@@ -559,13 +539,11 @@ static int INIT huft_build(unsigned *b,
return 3; /* not enough memory */
}
- DEBG1("4 ");
*t = q + 1; /* link to list for huft_free */
t = &q->next;
*t = NULL;
u[h] = ++q; /* table starts after link */
- DEBG1("5 ");
/* connect to last table, if there is one */
if (h) {
/* save pattern for backing up */
@@ -581,9 +559,7 @@ static int INIT huft_build(unsigned *b,
/* connect to last table */
u[h - 1][j] = r;
}
- DEBG1("6 ");
}
- DEBG("h6c ");
/* set up table entry in r */
r.bits = (u8)(k - w);
@@ -601,7 +577,6 @@ static int INIT huft_build(unsigned *b,
r.extra = (u8)e[*p - s];
r.val = d[*p++ - s];
}
- DEBG("h6d ");
/* fill code-like entries with r */
f = 1 << (k - w);
@@ -618,13 +593,9 @@ static int INIT huft_build(unsigned *b,
h--; /* don't need to update q */
w -= l;
}
- DEBG("h6e ");
}
- DEBG("h6f ");
}
- DEBG("huft7 ");
-
/* Return true (1) if we were given an incomplete table */
return y && g != 1;
}
@@ -713,8 +684,6 @@ static int INIT inflate_stored(struct io
{
unsigned n; /* number of bytes in block */
- DEBG("<stor");
-
/* go to byte boundary */
dumpbits(io, io->bits & 7);
@@ -727,7 +696,6 @@ static int INIT inflate_stored(struct io
while (n--)
put_byte(io, readbyte(io));
- DEBG(">");
return 0;
}
@@ -750,8 +718,6 @@ static int noinline INIT inflate_fixed(s
int bd; /* lookup bits for td */
unsigned l[N_MAX]; /* length list for huft_build */
- DEBG("<fix");
-
/* set up literal table */
for (i = 0; i < 144; i++)
l[i] = 8;
@@ -772,7 +738,6 @@ static int noinline INIT inflate_fixed(s
if ((i = huft_build(l, 30, 0, cpdist, cpdext, &td, &bd)) > 1) {
huft_free(tl);
- DEBG(">");
return i;
}
@@ -806,8 +771,6 @@ static int noinline INIT inflate_dynamic
unsigned nd; /* number of distance codes */
unsigned ll[286 + 30]; /* literal/length and distance code lengths */
- DEBG("<dyn");
-
/* read in table lengths */
nl = 257 + pullbits(io, 5); /* number of literal/length codes */
nd = 1 + pullbits(io, 5); /* number of distance codes */
@@ -815,16 +778,12 @@ static int noinline INIT inflate_dynamic
if (nl > 286 || nd > 30)
return 1; /* bad lengths */
- DEBG("dyn1 ");
-
/* read in bit-length-code lengths */
for (j = 0; j < nb; j++)
ll[border[j]] = pullbits(io, 3);
for (; j < 19; j++)
ll[border[j]] = 0;
- DEBG("dyn2 ");
-
/* build decoding table for trees--single level, 7 bit lookup */
bl = 7;
if ((i = huft_build(ll, 19, 19, 0, 0, &tl, &bl))) {
@@ -833,8 +792,6 @@ static int noinline INIT inflate_dynamic
return i; /* incomplete code set */
}
- DEBG("dyn3 ");
-
/* read in literal and distance code lengths */
n = nl + nd;
i = l = 0;
@@ -867,29 +824,21 @@ static int noinline INIT inflate_dynamic
}
}
- DEBG("dyn4 ");
-
/* free decoding table for trees */
huft_free(tl);
- DEBG("dyn5 ");
-
- DEBG("dyn5a ");
-
/* build the decoding tables for literal/length and distance codes */
bl = lbits;
if ((i = huft_build(ll, nl, 257, cplens, cplext, &tl, &bl))) {
- DEBG("dyn5b ");
if (i == 1) {
io->error("incomplete literal tree");
huft_free(tl);
}
return i; /* incomplete code set */
}
- DEBG("dyn5c ");
+
bd = dbits;
if ((i = huft_build(ll + nl, nd, 0, cpdist, cpdext, &td, &bd))) {
- DEBG("dyn5d ");
if (i == 1) {
io->error("incomplete distance tree");
huft_free(td);
@@ -898,19 +847,14 @@ static int noinline INIT inflate_dynamic
return i; /* incomplete code set */
}
- DEBG("dyn6 ");
-
/* decompress until an end-of-block code */
if (inflate_codes(io, tl, td, bl, bd))
return 1;
- DEBG("dyn7 ");
-
/* free the decoding tables, return */
huft_free(tl);
huft_free(td);
- DEBG(">");
return 0;
}
@@ -922,8 +866,6 @@ static int INIT inflate_block(struct ios
{
unsigned t; /* block type */
- DEBG("<blk");
-
*e = pullbits(io, 1); /* read in last block bit */
t = pullbits(io, 2); /* read in block type */
@@ -935,8 +877,6 @@ static int INIT inflate_block(struct ios
if (t == 1)
return inflate_fixed(io);
- DEBG(">");
-
/* bad block type */
return 2;
}
-
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